onehunnit16 onehunnit16

10-12-2017
Mathematics

contestada

There were three quizzes for the week. The first quiz was worth twice as much as the second quiz. The third quiz was 10 points less than the second quiz. The total points for the quizzes that week were 70 points. How much was each quiz worth.

Respuesta :

elleis4eleven elleis4eleven

10-12-2017

x+y+z=70
x=2y
z=2y-10

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